Roasting system for vanadium pentoxide production

Abstract

The utility model relates to a vanadium pentoxide production roasting system, belongs to the technical field of vanadium pentoxide production, and solves the technical problem that a large amount of manpower is needed when vanadium pentoxide is roasted and produced at present. The roasting system comprises a first supply device and a second supply device which are respectively used for supplying refined vanadium slag and a sodium modifying agent; the first feeding device is in butt joint with the conveying starting end of the first weighing belt conveyor, and a first discharging pipe is arranged at the conveying tail end of the first weighing belt conveyor in a butt joint mode; the second feeding device is in butt joint with the conveying starting end of the second weighing belt conveyor, and a second discharging pipe is arranged at the conveying tail end of the second weighing belt conveyor in a butt joint mode. The stirring device is provided with an inlet and an outlet, and the first discharging pipe and the second discharging pipe are both in butt joint with the inlet of the stirring device; and the rotary kiln is butted with the outlet of the stirring device. The system needs less manpower during operation, the production efficiency is higher, and the operation cost is lower.

Description

Technical Field

[0001] The utility model belongs to the technical field of vanadium pentoxide production, and particularly relates to a vanadium pentoxide production roasting system. Background Art

[0002] Vanadium pentoxide is a yellow metal compound widely used in metallurgy, chemical industry and other industries. Roasting is an important process for producing vanadium pentoxide in China. Specifically, sodium carbonate, sodium chloride, sodium sulfate and other sodium-forming agents are mixed with refined vanadium slag and then added into a rotary kiln for roasting.

[0003] When roasting to produce vanadium pentoxide, a large amount of raw materials (i.e., refined vanadium slag and sodium-forming agent) is required. The transportation of raw materials between different areas is relatively troublesome, and a large number of transportation equipment and transportation staff are required. Moreover, in order to produce quantitatively, the raw materials need to be weighed manually during the transportation process. As a result, the current vanadium pentoxide roasting requires a large amount of manpower and the production cost is relatively high. Utility Model Content

[0004] The utility model provides a vanadium pentoxide production roasting system, which is used to solve the current technical problem that a large amount of manpower is required when roasting and producing vanadium pentoxide.

[0005] The utility model is realized by the following technical scheme: a vanadium pentoxide production roasting system, comprising:

[0006] The first supply device and the second supply device are used to supply vanadium concentrate slag and sodium-forming agent respectively;

[0007] The first weighing belt conveyor has a conveying start end and a conveying end end, the first supply device is connected to the conveying start end of the first weighing belt conveyor, and a first discharge pipe is connected to the conveying end end of the first weighing belt conveyor;

[0008] The second weighing belt conveyor has a conveying start end and a conveying end end, the second supply device is docked with the conveying start end of the second weighing belt conveyor, and a second discharge pipe is docked with the conveying end end of the second weighing belt conveyor;

[0009] A stirring device having an inlet and an outlet, wherein the first feeding pipe and the second feeding pipe are both connected to the inlet of the stirring device to feed the refined vanadium slag and the sodium-forming agent into the stirring device;

[0010] The rotary kiln is used to generate high temperature to roast the refined vanadium slag and the sodium-forming agent, and the outlet of the stirring device is connected to the rotary kiln.

[0011] Furthermore, in order to better implement the present invention, the stirring device comprises:

[0012] The cylinder has two ends forming the inlet and the outlet respectively, the cylinder is installed in an inclined and rotatable manner, and the inlet is located at a higher height than the outlet;

[0013] The stirring part is installed inside the cylinder. When the cylinder rotates, the stirring part stirs the refined vanadium slag and the sodium-forming agent in the cylinder.

[0014] Furthermore, in order to better implement the present invention, the stirring part is a chain, and the length direction of the chain is perpendicular to the axial direction of the cylinder.

[0015] Furthermore, in order to better implement the present invention, a plurality of hooks are provided on the inner wall of the cylinder, and the two ends of the chain are respectively hung on different hooks.

[0016] Furthermore, in order to better implement the present invention, the number of the chains is multiple, and the multiple chains are distributed in sequence in the axial direction of the cylinder.

[0017] Furthermore, in order to better implement the present utility model, the first supply device includes:

[0018] A first silo is used to store refined vanadium slag, and the first silo is provided with a discharge port;

[0019] The first vibrating feeder is installed between the discharge port of the first silo and the first weighing belt conveyor to deliver the refined vanadium slag falling out of the discharge port of the first silo to the first weighing belt conveyor.

[0020] Further, in order to better implement the present utility model, the second supply device includes:

[0021] A second silo is used to store the sodium-forming agent, and the second silo is provided with a discharge port;

[0022] The second vibrating feeder is installed between the discharge port of the second silo and the second weighing belt conveyor to deliver the sodium-containing agent falling out of the discharge port of the second silo to the second weighing belt conveyor.

[0023] Furthermore, in order to better realize the utility model, the sodiumizing agent is sodium carbonate.

[0024] Furthermore, in order to better realize the utility model, the first supply device, the second supply device, the first weighing belt conveyor and the second weighing belt conveyor are installed on the third floor of the three-story factory building, the stirring device is installed on the second floor of the three-story factory building, and the rotary kiln is installed on the first floor of the three-story factory building.

[0025] Furthermore, in order to better implement the present invention, a dust collector is installed on the third floor and / or the second floor and / or the first floor of the three-story factory building.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] The vanadium pentoxide production roasting system provided by the utility model uses a first weighing belt conveyor and a first discharge pipe to transport the refined vanadium slag supplied by a first supply device to a stirring device, uses a second weighing belt conveyor and a second discharge pipe to transport the sodium-forming agent supplied by a second supply device to the stirring device, and uses the stirring device to stir the refined vanadium slag and the sodium-forming agent, so that the refined vanadium slag and the sodium-forming agent are fully mixed to form a raw material, and then the raw material is roasted in a rotary kiln, thereby completing the roasting process in the vanadium pentoxide production process.

[0028] During specific use, it is only necessary to move the refined vanadium slag and the sodium-forming agent to the first supply device and the second supply device respectively by manual labor or handling equipment. Then, the system can automatically transport the refined vanadium slag and the sodium-forming agent through the above-mentioned first weighing belt conveyor and the second weighing belt conveyor, and weigh the refined vanadium slag and the sodium-forming agent. The refined vanadium slag and the sodium-forming agent are automatically stirred by the stirring device, and the mixed raw material formed by the stirred refined vanadium slag and the sodium-forming agent can be automatically sent to the rotary kiln for roasting. The whole system has a compact structure, and mechanical equipment is used instead of manual labor to complete most of the transportation, weighing and stirring work, so the production efficiency is higher, and less manpower is required in the production and roasting process of vanadium pentoxide, thereby greatly reducing the production cost of vanadium pentoxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of a vanadium pentoxide production roasting system provided in an embodiment of the utility model.

[0031] In the figure:

[0032] 1-first silo, 2-first vibrating feeder, 3-second silo, 4-second vibrating feeder, 5-first weighing belt conveyor, 6-second weighing belt conveyor, 7-first discharge pipe, 8-second discharge pipe, 9-stirring device, 91-cylinder, 911-hook, 92-chain, 10-rotary kiln, 101-burner, 11-dust collector. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0034] Example:

[0035] The utility model provides a vanadium pentoxide production roasting system, such as Figure 1 As shown, it includes a first supply device for supplying refined vanadium slag, a second supply device for supplying a sodium-forming agent, a first weighing belt conveyor 5, a second weighing belt conveyor 6, a stirring device 9 and a rotary kiln 10, wherein:

[0036] The first weighing belt conveyor 5 has a conveying start end and a conveying end end. The first supply device is connected to the conveying start end of the first weighing belt conveyor 5. In this way, the first supply device can deliver the refined vanadium slag to the first weighing belt conveyor 5. A first discharge pipe 7 is connected to the conveying end of the first weighing belt conveyor 5. The refined vanadium slag is delivered to the first discharge pipe 7 through the first weighing belt conveyor 5. It is worth noting that the first weighing belt conveyor 5 in this embodiment includes a belt conveying device and a gravity sensor device installed on the belt conveying device. Since the first weighing belt conveyor 5 belongs to the prior art and has been widely used in the logistics industry, it will not be described in detail here.

[0037] The second weighing belt conveyor 6 has a conveying start end and a conveying end end, and the second supply device is docked with the conveying start end of the second weighing belt conveyor 6, so that the second supply device can deliver the sodiumizing agent to the second weighing belt conveyor 6, and a second discharge pipe 8 is docked at the conveying end of the second weighing belt conveyor 6, and the sodiumizing agent is delivered to the second discharge pipe 8 through the second weighing belt conveyor 6. It is worth noting that the second weighing belt conveyor 6 in this embodiment includes a belt conveying device and a gravity sensor device installed on the belt conveying device. Since the second weighing belt conveyor 6 belongs to the prior art and has been widely used in the logistics industry, it will not be described in detail here.

[0038] The stirring device 9 has an inlet and an outlet, and the first feeding pipe 7 and the second feeding pipe 8 are both connected to the inlet of the stirring device 9 to feed the refined vanadium slag and the sodium-forming agent into the stirring device 9. The rotary kiln 10 is used to generate high temperature to roast the refined vanadium slag and the sodium-forming agent entering therein, and the outlet of the stirring device 9 is connected to the rotary kiln 10, so that the refined vanadium slag and the sodium-forming agent after being stirred and mixed by the stirring device enter the rotary kiln 10 for roasting. The rotary kiln 10 in this embodiment is provided with a burner 101, and the burner 101 is used to generate high temperature to roast the refined vanadium slag and the sodium-forming agent in the rotary kiln 10. Since the stirring device 9 is directly connected to the rotary kiln 10, the partial preheating of the rotary kiln 10 will also heat the stirring device 9, thereby preheating the refined vanadium slag and the sodium-forming agent in the stirring device 9, which can achieve an energy-saving effect.

[0039] Through the above structure, the vanadium pentoxide production roasting system provided by the utility model uses the first weighing belt conveyor 5 and the first discharge pipe 7 to transport the refined vanadium slag supplied by the first supply device to the stirring device 9, and uses the second weighing belt conveyor 6 and the second discharge pipe 8 to transport the sodium-forming agent supplied by the second supply device to the stirring device 9, and uses the stirring device 9 to stir the refined vanadium slag and the sodium-forming agent, so that the refined vanadium slag and the sodium-forming agent are fully mixed to form a raw material, and then the rotary kiln 10 is used to roast the raw material, thereby completing the roasting process in the vanadium pentoxide production process.

[0040] During specific use, it is only necessary to move the refined vanadium slag and the sodium-forming agent to the first supply device and the second supply device respectively by manual labor or a transport device (optionally, the transport device can be a hoist), and then the system can automatically transport the refined vanadium slag and the sodium-forming agent through the above-mentioned first weighing belt conveyor 5 and the second weighing belt conveyor 6, and weigh the refined vanadium slag and the sodium-forming agent, and automatically stir the refined vanadium slag and the sodium-forming agent through the stirring device 9, and can automatically send the mixed raw material formed by the stirred refined vanadium slag and the sodium-forming agent into the rotary kiln 10 for roasting. The whole system has a compact structure, and mechanical equipment is used instead of manual labor to complete most of the transportation, weighing and stirring work, so the production efficiency is higher, and less manpower is required in the vanadium pentoxide production and roasting process, thereby greatly reducing the production cost of vanadium pentoxide.

[0041] An optional implementation of this embodiment is as follows: the stirring device 9 in this embodiment can be any form of stirring equipment as long as it can stir and mix the refined vanadium slag and the sodium-forming agent.

[0042] Optimally, the stirring device 9 in this embodiment includes a cylinder 91 and a stirring portion, wherein:

[0043] The cylinder 91 is a straight cylinder, and both ends of the cylinder 91 are penetrated to form openings, and the openings at both ends of the cylinder 91 respectively constitute the inlet and outlet of the stirring device 9. The cylinder 91 is installed obliquely and driven to rotate by a rotary power source (such as a motor), and the rotation of the cylinder 91 is the rotation around the central axis of the cylinder 91. The stirring part is installed inside the cylinder 91. When the cylinder 91 rotates, the stirring part is driven to rotate together, and the refined vanadium slag and the sodium agent inside the cylinder 91 are stirred by the stirring part.

[0044] When the refined vanadium slag and the sodium-forming agent enter the cylinder 91 from the inlet, the refined vanadium slag and the sodium-forming agent will automatically slide to the outlet of the cylinder 91 under the action of gravity. During the sliding process in the cylinder 91, the rotating stirring part stirs the refined vanadium slag and the sodium-forming agent, so that the refined vanadium slag and the sodium-forming agent are evenly mixed.

[0045] Optionally, the stirring part in this embodiment is a chain 92, and the length direction of the chain 92 is perpendicular to the axial direction of the cylinder 91, and the chain 92 can be welded and fixed on the inner wall of the cylinder 91. As a best implementation of this embodiment, in this embodiment, a plurality of hooks 911 are provided on the inner wall of the cylinder 91, and the two ends of the chain 92 are hung on different hooks 911, so as to facilitate disassembly. Of course, the stirring part can also be a stirring blade welded on the inner wall of the cylinder 91.

[0046] In this embodiment, there are multiple chains 92, which are sequentially distributed in the axial direction of the cylinder 91, so that the refined vanadium slag and the sodium-forming agent in the cylinder 91 can be better stirred. Optionally, all chains 92 are arranged side by side in the cylinder 91, that is, all chains 92 are arranged in parallel in the cylinder 91. As another implementation of this embodiment, in this embodiment, two adjacent chains 92 are perpendicular to each other, so as to better stir.

[0047] An optional implementation of this embodiment is as follows: Figure 1 As shown, the first supply device comprises a first silo 1 and a first vibrating feeder 2, wherein:

[0048] The first silo 1 is used to store the refined vanadium slag. A discharge port is provided at the bottom of the first silo 1. The first vibrating feeder 2 is installed between the discharge port of the first silo 1 and the first weighing belt conveyor 5. The refined vanadium slag falls out of the discharge port of the first silo 1 and falls on the first vibrating feeder 2. The first vibrating feeder 2 then shakes the refined vanadium slag onto the first weighing belt conveyor 5, so as to deliver the refined vanadium slag falling out of the discharge port of the first silo 1 to the first weighing belt conveyor 5. Through the above structure, the first vibrating feeder 2 ensures that the refined vanadium slag can fall onto the first weighing belt conveyor 5 more smoothly, so as to be transported to the first discharge pipe 7 with it. It is worth noting that the first vibrating feeder 2 in this embodiment belongs to the prior art, so it will not be described in detail here. It generally includes a hopper equipped with screen bars and a vibration motor for driving the vibration of the hopper. During the vibration of the hopper, the refined vanadium slag of suitable size that falls into the hopper passes through the gap between the screen bars, while the refined vanadium slag of larger size is screened out by the screen bars.

[0049] Due to the large demand for refined vanadium slag, two first supply devices consisting of the first silo 1 and the first vibrating feeder 2 are configured, and the two first supply devices are sequentially arranged between the conveying start end and the conveying end end of the first weighing belt conveyor 5 .

[0050] Of course, the first supply device mentioned above can also be any other equipment that can deliver the refined vanadium slag to the first weighing belt conveyor 5, such as a spiral feeder.

[0051] An optional implementation of this embodiment is as follows: Figure 1 As shown, the second supply device comprises a second silo 3 and a second vibrating feeder 4, wherein:

[0052] The second silo 3 is used to store the sodiumizing agent. A discharge port is provided at the bottom of the second silo 3. The second vibrating feeder 4 is installed between the discharge port of the second silo 3 and the second weighing belt conveyor 6. The sodiumizing agent falls out of the discharge port of the second silo 3 and then falls on the second vibrating feeder 4. The second vibrating feeder 4 then shakes the sodiumizing agent off onto the second weighing belt conveyor 6, so as to deliver the sodiumizing agent falling out of the discharge port of the second silo 3 to the second weighing belt conveyor 6. Through the above structure, the second vibrating feeder 4 ensures that the sodiumizing agent can fall onto the second weighing belt conveyor 6 more smoothly, so as to be transported to the second feeding pipe 8 with it. It is worth noting that the second vibrating feeder 4 in this embodiment belongs to the prior art, so it will not be described in detail here. It generally includes a hopper equipped with screen bars and a vibration motor for driving the vibration of the hopper. During the vibration of the hopper, the sodiumizing agent with a suitable size that falls into the hopper passes through the gap between the screen bars, while the sodiumizing agent with a larger size is screened out by the screen bars.

[0053] Of course, the second supply device may also be any other device capable of delivering the sodium-containing agent to the second weighing belt conveyor 6, such as a screw feeder.

[0054] The sodiumizing agent in this embodiment is sodium carbonate. Of course, the sodiumizing agent may also be sodium chloride, sodium sulfate, etc.

[0055] In order to install the first supply device, the second supply device, the first weighing belt conveyor 5, the second weighing belt conveyor 6, the stirring device 9 and the rotary kiln 10 more compactly, in this embodiment, a three-story factory building is built in the factory, wherein the first supply device, the second supply device, the first weighing belt conveyor 5 and the second weighing belt conveyor 6 are installed on the third floor of the three-story factory building, the stirring device 9 is installed on the second floor of the three-story factory building, the rotary kiln 10 is installed on the first floor of the three-story factory building, and the first discharge pipe 7 and the second discharge pipe 8 are located between the third floor and the second floor. In this case, the refined vanadium slag and the sodium-forming agent can be lifted to the third floor by a hoist, or the refined vanadium slag and the sodium-forming agent can be lifted to the third floor by manual transportation.

[0056] In this way, not only can the entire vanadium pentoxide production roasting system be arranged more compactly, but the refined vanadium slag and the sodium-forming agent can fall from the first discharge pipe 7 and the second discharge pipe 8 to the stirring device 9 respectively under the action of gravity, so it is more energy-saving and environmentally friendly.

[0057] More preferably, in order to reduce the dust in the factory, in this embodiment, a dust collector 11 is installed on the third floor and / or the second floor and / or the first floor of the three-story factory. Optimally, the dust collector 11 is installed on the first floor, the second floor and the third floor of the three-story factory, so that the dust generated on each floor can be better collected and the dust in the factory can be better reduced. It is worth noting that the dust collector 11 belongs to the prior art and is used in many fields, so it will not be described in detail here.

[0058] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A vanadium pentoxide production roasting system, characterized in that: include: The first supply device and the second supply device are used to supply vanadium concentrate slag and sodium-forming agent respectively; The first weighing belt conveyor (5) has a conveying start end and a conveying end end, the first supply device is connected to the conveying start end of the first weighing belt conveyor (5), and a first discharge pipe (7) is connected to the conveying end end of the first weighing belt conveyor (5); The second weighing belt conveyor (6) has a conveying start end and a conveying end end, the second supply device is docked with the conveying start end of the second weighing belt conveyor (6), and a second discharge pipe (8) is docked with the conveying end end of the second weighing belt conveyor (6); The stirring device (9) has an inlet and an outlet, and the first feeding pipe (7) and the second feeding pipe (8) are both connected to the inlet of the stirring device (9) to feed the refined vanadium slag and the sodium-forming agent into the stirring device (9); The rotary kiln (10) is used to generate high temperature to roast the vanadium concentrate slag and the sodium-forming agent, and the outlet of the stirring device (9) is connected to the rotary kiln (10).

2. The vanadium pentoxide production roasting system according to claim 1, characterized in that: The stirring device (9) comprises: The cylinder (91) has two ends forming the inlet and the outlet respectively, the cylinder (91) is installed in an inclined and rotatable manner, and the inlet is located at a higher height than the outlet; The stirring part is installed inside the cylinder (91), and when the cylinder (91) rotates, the stirring part stirs the refined vanadium slag and the sodium-forming agent in the cylinder (91).

3. The vanadium pentoxide production roasting system according to claim 2, characterized in that: The stirring part is a chain (92), and the length direction of the chain (92) is perpendicular to the axial direction of the cylinder (91).

4. The vanadium pentoxide production roasting system according to claim 3, characterized in that: A plurality of hooks (911) are arranged on the inner wall of the cylinder (91), and the two ends of the chain (92) are respectively hung on different hooks (911).

5. The vanadium pentoxide production roasting system according to claim 4, characterized in that: There are a plurality of chains (92), and the plurality of chains (92) are distributed in sequence in the axial direction of the cylinder (91).

6. The vanadium pentoxide production roasting system according to claim 1, characterized in that: The first supply device comprises: A first silo (1) is used to store refined vanadium slag, and the first silo (1) is provided with a discharge port; A first vibrating feeder (2) is installed between the discharge port of the first silo (1) and the first weighing belt conveyor (5) to deliver the refined vanadium slag falling out of the discharge port of the first silo (1) to the first weighing belt conveyor (5).

7. The vanadium pentoxide production roasting system according to claim 1, characterized in that: The second supply device comprises: A second silo (3) is used to store the sodium-reducing agent, and the second silo (3) is provided with a discharge port; The second vibrating feeder (4) is installed between the discharge port of the second silo (3) and the second weighing belt conveyor (6) to deliver the sodium-containing agent falling out of the discharge port of the second silo (3) to the second weighing belt conveyor (6).

8. The vanadium pentoxide production roasting system according to claim 7, characterized in that: The sodiumizing agent is sodium carbonate.

9. The vanadium pentoxide production roasting system according to any one of claims 1 to 8, characterized in that: The first supply device, the second supply device, the first weighing belt conveyor (5) and the second weighing belt conveyor (6) are installed on the third floor of a three-story factory building, the stirring device (9) is installed on the second floor of the three-story factory building, and the rotary kiln (10) is installed on the first floor of the three-story factory building.

10. The vanadium pentoxide production roasting system according to claim 9, characterized in that: A dust collector (11) is installed on the third floor and / or the second floor and / or the first floor of the three-story factory building.

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